Longgu

隆崒───Longgu

Introduced the movement circumstance of the Longgu coal mine air compressor machine, points out to circulate the medium shortage.───介绍了龙固煤矿空气压缩机的运行情况，指出了运行中的不足。

Variety rules of concrete strain of outer shaft wall were carried out based on in-situ measurement during freeze sinking of Longgu Mine auxiliary shaft.───龙固副井冻结凿井期现场实测，获得了龙固副井外层井壁混凝土应变的变化规律。